CN210571860U - Filter element reverse bubble point testing device with pressure regulating buffer mechanism - Google Patents
Filter element reverse bubble point testing device with pressure regulating buffer mechanism Download PDFInfo
- Publication number
- CN210571860U CN210571860U CN201921080374.3U CN201921080374U CN210571860U CN 210571860 U CN210571860 U CN 210571860U CN 201921080374 U CN201921080374 U CN 201921080374U CN 210571860 U CN210571860 U CN 210571860U
- Authority
- CN
- China
- Prior art keywords
- filter element
- pressure regulating
- way valve
- pressure
- buffer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a filter element reverse bubble point testing device with a pressure regulating buffer mechanism, which comprises a conveying pipe for conveying high-pressure gas, a filter element interface for installing the outlet end of the filter element, a testing water tank for placing the filter element, and a pressure regulating buffer mechanism; the pressure regulating buffer mechanism comprises a pressure regulating valve, a two-way valve, a two-position three-way valve and a buffer gas tank which are sequentially connected from front to back along the flow guide direction; the two-position three-way valve is used for switching and communicating an inlet of the buffer gas tank, an outlet of the two-way valve and atmosphere; the air outlet end of the buffer air tank is connected with the air inlet end of the filter element connector through an air outlet pipe, and a pressure gauge is installed on the air outlet pipe. This patent is through adding pressure regulating buffer gear, is convenient for realize test pressure's regulation, avoids high-pressure gas directly to carry to the filter core inside, and filter core instantaneous pressure is too big, easily causes the problem of filter core damage.
Description
Technical Field
The utility model relates to a check out test set field, the reverse bubble point testing arrangement of concretely relates to filter core.
Background
Folded air filter elements and partial liquid filter elements such as PES membrane liquid filter elements are high precision filter elements, and such filter elements are typically tested for performance using an integrity tester. However, one integrity test may take 20 to 30 minutes, which is too long for the filter element to be factory inspected, and is not favorable for ensuring the production efficiency. Therefore, filter element manufacturers usually adopt once-a-year type tests and sampling tests to replace factory performance tests.
In view of the above problems, there is also a simple reverse bubble point testing device instead of the filter integrity test, for example, patent No. 201020251336.2 discloses a single filter reverse bubble point tester having a sealing cover fitted over and enclosing the filter outlet, the sealing cover being provided with an air tube connector. Furthermore, the utility model discloses there is a compressed air source in addition, through pipeline and trachea interface connection. By the utility model, the integrity test can be carried out on the reverse osmosis of the membrane filtration filter element, thereby making up and perfecting the deficiency of the forward integrity test and ensuring the tightness of the integrity test; the operation is simple and convenient, the time is saved, and the specific damaged part of the filter element can be quickly and visually judged.
However, the structure does not have a pressure regulating buffer mechanism, so that a tester needs to control the pressure lifting speed by himself, and the pressure regulating buffer mechanism is not beneficial to large-batch rapid detection.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a reverse bubble point testing arrangement of filter core with pressure regulating buffer gear to solve current reverse bubble point testing arrangement and be unfavorable for the technical problem that detects in batches fast.
The technical scheme of the utility model is that: the filter element reverse bubble point testing device with the pressure regulating buffer mechanism comprises a conveying pipe for conveying high-pressure gas, a filter element interface for installing the outlet end of the filter element and a testing water tank for placing the filter element, and is characterized by also comprising the pressure regulating buffer mechanism;
the pressure regulating buffer mechanism comprises a pressure regulating valve, a two-way valve, a two-position three-way valve and a buffer gas tank which are sequentially connected from front to back along the flow guide direction;
the two-position three-way valve is used for switching and communicating an inlet of the buffer gas tank with an outlet of the two-way valve and atmosphere, an air source port of the two-position three-way valve is in butt joint and communication with the outlet of the two-way valve, a working port of the two-position three-way valve is in butt joint and communication with the buffer gas tank, and an exhaust port of the two-position three-way valve is in butt joint and communication with the atmosphere;
the air outlet end of the buffer air tank is connected with the air inlet end of the filter element connector through an air outlet pipe, and a pressure gauge is mounted on the air outlet pipe;
and the air inlet end of the pressure regulating valve is connected with the delivery pipe in a butt joint mode.
This patent is through adding pressure regulating buffer gear, is convenient for realize test pressure's regulation, avoids high-pressure gas directly to carry to the filter core inside, and filter core instantaneous pressure is too big, is unfavorable for the accurate of bubble point pressure to know and easily causes the problem of filter core damage.
The testing step is 1) the delivery pipe starts to supply air, the pressure regulating valve is regulated, and a pressure gauge is arranged on the pressure regulating valve, so that the pressure of the pressure regulating valve is not more than 0.2 Mpa. 2) Connect the filter cartridge under test to the cartridge interface and ensure a seal. 3) The solution is poured into the test water tank to a depth suitable for immersing the filter element. 4) And (4) opening the two-way valve, keeping the gas source port of the two-position three-way valve and the working port in a normally open state, starting gas to enter the buffer tank, observing the pressure gauge, and slowly lifting the pointer. 5) During the rising process, attention was paid to observe whether the filter element to be tested began to bubble. When continuous bubbles appear, the two-way valve is closed and the display value of the pressure gauge is quickly recorded, namely the bubble point value of the filter element. After the test of one filter element is finished, the filter element is lifted away from the liquid level, the two-position three-way valve is opened to conduct the buffer gas tank with the atmosphere, and the pressure in the buffer gas tank returns to zero. And taking the filter element away from the filter element interface to replace the next test filter element. And after the whole test is finished, putting the solvent in the test water tank clean. And the tested filter elements are put into a turnover box in a unified mode and then pushed into a drying room to dry the solvent.
Further preferably, the filter element interface comprises a slot for inserting the filter element outlet, and two limiting pieces for clamping the fan-shaped extending pieces outside the filter element outlet are mounted on the end face of the slot;
the limiting part is a metal wire.
The installation and fixation of the filter element are convenient to realize.
Further preferably, the buffer gas tank is a buffer gas tank having a volume of 6L.
Further preferably, an O-shaped ring is arranged outside the outlet of the filter element. Ensuring the tightness after being inserted into the slot.
Further preferably, alcohol is stored in the test water tank, and a drain valve is installed at the bottom of the test water tank. The recovery of alcohol after the test is finished is convenient. By selecting alcohol as a test solvent, the test on the one hand, which is suitable for the hydrophobic filter element, is convenient for quick drying, the test speed is ensured, and the production efficiency is improved.
Further preferably, the test water tank is further provided with a support frame, the test water tank is mounted on the support frame, and the ventilation structure is further mounted on the support frame and is located right above the test water tank.
And the alcohol volatile matters are timely ventilated and discharged.
Further preferably, the gas outlet pipe comprises three branch pipes and a three-way joint for connecting the three branch pipes, wherein the three branch pipes are a first branch pipe, a second branch pipe and a third branch pipe respectively;
one end of each of the first branch pipe, the second branch pipe and the third branch pipe is connected with three ports of the three-way joint respectively;
the other ends of the first branch pipe, the second branch pipe and the third branch pipe are respectively connected with the air outlet end of the buffer air tank, the pressure gauge and the air inlet end of the filter element connector.
Further preferably, a dial plate of the pressure gauge is mounted on the support frame. The pressure value is convenient to observe.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the present invention installed on the supporting frame;
fig. 3 is a schematic structural view of the filter cartridge interface of the present invention;
fig. 4 is a schematic structural diagram of the outlet of the filter element of the present invention.
In the figure: the device comprises a pressure regulating valve 1, a two-way valve 2, a two-position three-way valve 3, a buffer gas tank 4, a filter element interface 5, a pressure gauge 6, a three-way joint 7, a test water tank 8, a support frame 9, a ventilation structure 10, a slot 51, a metal wire 52 and a fan-shaped extension piece 71.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, in embodiment 1, the filter element reverse bubble point testing apparatus with the pressure regulating buffer mechanism includes a conveying pipe for conveying high-pressure gas, a filter element interface 5 for installing an outlet end of the filter element, a testing water tank 8 for placing the filter element therein, and a pressure regulating buffer mechanism; the pressure regulating buffer mechanism comprises a pressure regulating valve 1, a two-way valve 2, a two-position three-way valve 3 and a buffer gas tank 4 which are sequentially connected from front to back along the flow guide direction; the two-position three-way valve 3 is used for switching and communicating the buffer gas tank 4 with the outlet of the two-way valve 2 and the atmosphere, the gas source port of the two-position three-way valve 3 is in butt joint and communication with the outlet of the two-way valve 2, the working port of the two-position three-way valve 3 is in butt joint and communication with the gas inlet of the buffer gas tank 4, and the gas outlet of the two-position three-way valve 3 is; the air outlet end of the buffer air tank 4 is connected with the air inlet end of the filter element interface 5 through an air outlet pipe, and a pressure gauge 6 is arranged on the air outlet pipe; the air inlet end of the pressure regulating valve 1 is connected with the delivery pipe in a butt joint mode. This patent is through adding pressure regulating buffer gear, is convenient for realize test pressure's regulation, avoids high-pressure gas directly to carry to the filter core inside, and filter core instantaneous pressure is too big, is unfavorable for the accurate of bubble point pressure to know and cause the filter core damage.
The filter element interface 5 comprises a slot 51 for inserting the filter element outlet, and two limiting pieces for clamping fan-shaped extending pieces 71 on the outer side of the filter element outlet are arranged on the end surface of the slot 51; the limiting member is a wire 52. The installation and fixation of the filter element are convenient to realize. The metal wire is U-shaped, and the metal wire includes two axially extending extension portions and a connecting portion for connecting the two extension portions, and the connecting portion is curved. An O-shaped ring is arranged on the outer side of the outlet of the filter element. Ensuring the tightness after being inserted into the slot.
The buffer gas tank 4 is a buffer gas tank 4 having a volume of 6L.
Alcohol is stored in the test water tank 8, and a drain valve is installed at the bottom of the test water tank 8. Is convenient for removing the alcohol in time. By selecting alcohol as a testing solvent, the rapid drying is convenient, the testing speed is ensured, and the production efficiency is improved.
The gas outlet pipe comprises three branch pipes and a three-way joint 7 for connecting the three branch pipes, wherein the three branch pipes are respectively a first branch pipe, a second branch pipe and a third branch pipe; one end of the first branch pipe, one end of the second branch pipe and one end of the third branch pipe are respectively connected with three ports of the three-way joint 7; the other ends of the first branch pipe, the second branch pipe and the third branch pipe are respectively connected with the air outlet end of the buffer air tank 4, the pressure gauge 6 and the air inlet end of the filter element interface 5. The dial plate of the pressure gauge is arranged on the support frame. The pressure value is convenient to observe.
The test device further comprises a support frame 9, the support frame 9 is provided with a test water tank 8, the support frame 9 is further provided with a ventilation structure 10, and the ventilation structure 10 is located right above the test water tank 8. And the alcohol volatile matters are timely ventilated and discharged. The ventilation structure is the current indoor common device that ventilates and handle, is prior art, so the utility model discloses do not carry out the detail. A supporting platform of the two-way valve, the two-position three-way valve and the pressure regulating valve is arranged behind the supporting frame. The supporting platform is fixed on the supporting frame.
The conveying pipe is connected with an air outlet end of an air compressor; the two-way valve is a two-position two-way electromagnetic valve; the supporting frame is provided with a test switch for controlling the on-off of the two-way valve; the support frame is also provided with an exhaust control switch for controlling the two-position three-way valve to realize butt joint and conduction of the working port and the exhaust port, and the air source port and the working port of the two-position three-way valve are kept normally open under the condition that the two-position three-way valve is not electrified. And the two-position three-way valve is provided with an electromagnet which is electrified to realize butt joint and conduction of the exhaust port and the working port. The exhaust control switch is arranged on a connecting line of the electromagnet and the power supply. When the test control switch is turned on, the two-way valve is powered on and turned on, the air source port of the two-position three-way valve and the working port are kept normally open, air begins to enter the buffer tank, and the pressure rises. When the test control switch is closed, the exhaust control switch is in an open state, namely the two three-way valve electromagnets are electrified, the working port is in butt joint with the exhaust port, the buffer tank is in conduction with the atmosphere, and gas in the tank is exhausted.
The conveying pipe is also connected with a high-pressure conveying branch, one end of the high-pressure conveying branch is connected with the conveying pipe in a butt joint mode, and the other end of the high-pressure conveying branch is connected with the area between the outlet of the two-way valve and the air source port of the two-position three-way valve. An electromagnetic valve is arranged on the high-pressure delivery branch. After the test is finished, the filter element is detached from the test interface, the high-pressure conveying branch is conducted, the two-way valve of the pressure regulating buffer mechanism is closed, and the two-position three-way valve is in a mode that the air source port is conducted with the working port. The high-pressure gas that the high pressure was carried in the branch road was carried in the work head derivation, blows to the filter core surface through the filter core interface, realizes the blow-off of the liquid on filter core surface, prevents that the filter core from shifting out back alcohol pollution ground from testing the basin, guarantees the drying effect on ground.
The testing step is 1) the delivery pipe starts to supply air, the pressure regulating valve is regulated, and a pressure gauge is arranged on the pressure regulating valve, so that the pressure of the pressure regulating valve is not more than 0.2 Mpa.
2) Connect the filter cartridge under test to the cartridge interface and ensure a seal.
3) The solution is poured into the test water tank to a depth suitable for immersing the filter element.
4) And the two-way valve is pressed and opened, the two-position three-way valve is in a normally open state, the buffer gas tank starts to intake gas, the pressure gauge is observed, and the pointer slowly rises.
5) During the rising process, attention was paid to observe whether the filter element to be tested began to bubble. When continuous bubbles appear, the two-way valve is loosened and closed, and the display value of the pressure gauge is quickly recorded, namely the bubble point value of the filter element. (at this time, the display value of the pressure gauge is suspended for several seconds and is easy to record). In addition, when the device is used, a qualified bubble point value can be set according to the qualified requirement of the filter element, and when the pressure gauge value is observed to reach and exceed the set bubble point value, the bubbling phenomenon occurs, namely the test is qualified.
6) After the test of a filter core finishes, lift the filter core from the liquid level, open the exhaust control switch, two three-way valves switch the buffer tank and switch on with the atmosphere, and the gas in the buffer tank of discharging takes the filter core from filter core kneck and changes next test filter core.
And after the whole test is finished, putting the solvent in the test water tank clean. And the tested filter elements are put into a turnover box in a unified mode and then pushed into a drying room to dry the solvent.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The filter element reverse bubble point testing device with the pressure regulating buffer mechanism comprises a conveying pipe for conveying high-pressure gas, a filter element interface for installing the outlet end of the filter element and a testing water tank for placing the filter element, and is characterized by also comprising the pressure regulating buffer mechanism;
the pressure regulating buffer mechanism comprises a pressure regulating valve, a two-way valve, a two-position three-way valve and a buffer gas tank which are sequentially connected from front to back along the flow guide direction;
the two-position three-way valve is used for switching and communicating an inlet of the buffer gas tank with an outlet of the two-way valve and atmosphere, an air source port of the two-position three-way valve is in butt joint and communication with the outlet of the two-way valve, a working port of the two-position three-way valve is in butt joint and communication with the buffer gas tank, and an exhaust port of the two-position three-way valve is in butt joint and communication with;
the air outlet end of the buffer air tank is connected with the air inlet end of the filter element connector through an air outlet pipe, and a pressure gauge is mounted on the air outlet pipe;
and the air inlet end of the pressure regulating valve is connected with the delivery pipe in a butt joint mode.
2. The reverse bubble point testing device of filter core with pressure regulating buffer mechanism of claim 1, characterized in that: the filter element interface comprises a slot for inserting the filter element outlet, and two limiting pieces for clamping fan-shaped extending pieces outside the filter element outlet are arranged on the end surface of the slot;
the limiting part is a metal wire.
3. The reverse bubble point testing device of filter core with pressure regulating buffer mechanism of claim 1, characterized in that: the buffer gas tank is a buffer gas tank having a volume of 6L.
4. The reverse bubble point testing device of filter core with pressure regulating buffer mechanism of claim 1, characterized in that: the test water tank is internally stored with alcohol, and a drain valve is installed at the bottom of the test water tank.
5. The reverse bubble point testing device of filter core with pressure regulating buffer mechanism of claim 1, characterized in that: the test water tank is characterized by further comprising a supporting frame, the test water tank is mounted on the supporting frame, a ventilation structure is further mounted on the supporting frame, and the ventilation structure is located right above the test water tank.
6. The reverse bubble point testing device of filter core with pressure regulating buffer mechanism of claim 1, characterized in that: the air outlet pipe comprises three branch pipes and a three-way joint for connecting the three branch pipes, wherein the three branch pipes are a first branch pipe, a second branch pipe and a third branch pipe respectively;
one end of each of the first branch pipe, the second branch pipe and the third branch pipe is connected with three ports of the three-way joint respectively;
the other ends of the first branch pipe, the second branch pipe and the third branch pipe are respectively connected with the air outlet end of the buffer air tank, the pressure gauge and the air inlet end of the filter element connector.
7. The reverse bubble point testing device of filter core with pressure regulating buffer gear of claim 5, characterized in that: the dial plate of the pressure gauge is installed on the support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921080374.3U CN210571860U (en) | 2019-07-11 | 2019-07-11 | Filter element reverse bubble point testing device with pressure regulating buffer mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921080374.3U CN210571860U (en) | 2019-07-11 | 2019-07-11 | Filter element reverse bubble point testing device with pressure regulating buffer mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210571860U true CN210571860U (en) | 2020-05-19 |
Family
ID=70631014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921080374.3U Expired - Fee Related CN210571860U (en) | 2019-07-11 | 2019-07-11 | Filter element reverse bubble point testing device with pressure regulating buffer mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210571860U (en) |
-
2019
- 2019-07-11 CN CN201921080374.3U patent/CN210571860U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209640150U (en) | A kind of hydraulic oil particle pollutant testing apparatus | |
| CN204018275U (en) | Multi-station full-automatic filter core rinses checkout gear | |
| CN210571860U (en) | Filter element reverse bubble point testing device with pressure regulating buffer mechanism | |
| CN110146349B (en) | Pressurized air sampling device and sampling method thereof | |
| CN203745155U (en) | Fuel tank comprehensive leakage detection platform | |
| CN110207910B (en) | Automatic valve leakage rate testing device comprising exhaust unit | |
| CN209150218U (en) | A kind of suction type gas inspection acid filling all-in-one machine | |
| CN217587231U (en) | Building coating layer stain resistance test device | |
| CN207636360U (en) | A kind of clear tank instrument of double pump | |
| CN114235660B (en) | Filter element integrality and air permeability performance testing device | |
| CN110057767A (en) | A kind of EO-1 hyperion water body attenuation by absorption measuring device and method based on buoy | |
| CN219200775U (en) | Portable device for detecting airtight container and replacing gas | |
| CN207779637U (en) | A kind of automatic leak-checking apparatus of soft scope | |
| CN208888008U (en) | A kind of natural gas automatic continuous sampling system of solar control | |
| CN203069390U (en) | A testing machine of negative-pressure-impact-resistant test and pulse pressure test of a water heater | |
| CN107042224B (en) | Cleaning device and cleaning method for U-shaped porous glass plate absorption tube | |
| CN206960175U (en) | A kind of seawater sample bottle removes device of air | |
| CN217033252U (en) | Gas sampling device | |
| CN209673295U (en) | Closestool casts detection device | |
| CN215338742U (en) | Solenoid valve detects frock | |
| CN217652900U (en) | Automatic exhaust device of water pump | |
| CN219798617U (en) | Special ventilation and water-supply inspection device for reagent needle | |
| CN220960983U (en) | Pressure-holding testing device for secondary water distribution pipeline of clean room | |
| CN214224493U (en) | Water pump hydraulic performance testing device | |
| CN219015555U (en) | Gas turbine casing gas tightness detects frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |